Inside the transaxle At last track event I had someone roll halfway under there right after pulling off the track. His feeling was that it came from the transaxle itself... The dependency on both temperature and clutch load seems to indicate bearing? No? Could it be a marginal bearing that with play causes other things to touch when nice and warm and the load (from pressing the clutch) changes?
Jes

The dependency on both temperature and clutch load seems to indicate bearing? No? Could it be a marginal bearing that with play causes other things to touch when nice and warm and the load (from pressing the clutch) changes?

I think any bearing making that sort of noise would have self destructed by now.

I think any bearing making that sort of noise would have self destructed by now.

And mind you, it has been like this through an intense race weekend. Still acting the same way - no worse, no better. Yes, I believe it is from the clutch housing. I'll try lube the pivot fork, etc. but it is pretty much shooting in the dark.

Hmm, could it be the 4 puck race clutch? I bet you Andrew Garcia can pinpoint it - Andrew?

You can drive it on the street, but I don't see why - no limo take offs. I would get something like the 8 puck CF from performatek for street use if the engine power makes the stock clutch impractical.
Jes

Ok, I found something that could be the source of the ringing noise. If you look at the exploded picture below and focus on the area of the fork. Look for part #20, the "spherical pin". You'll see a washer between the spherical pin and the housing. I'm pretty sure I can rotate that washer with my fingers through the opening for the fork I'm sure it should be tight. I will see if I can get a tool on the sperical pin through the fork opening and tighten it.

Dry? Yes. Rattles freely? Hard to tell. I could barely get a finger on it, and rotate it. When the fork pivots around the spherical pin the load changes and perhaps, if a bit loose, it will rattle freely. It is somewhat hypothetical. Though, I just had Colin look at a transmission we have apart in his garage, and he could actually loosen the spherical pin by hand Is that normal?

Anyway, I will see if I can tighten it through the opening for the fork, without disconnecting anything. Though, the fork may put load on it, making turning the it difficult... Also, the fork may obstruct access to turning the pin through the opening. I would then have to disable the clutch slave and remove the fork. If that isn't enough, I guess I will have to remove the clutch cover and clutch.

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